How to read many arbitrary text files in MATLAB?
7 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Phan
am 24 Jul. 2014
Kommentiert: Phan
am 25 Jul. 2014
Dear everyone,
Please help me to solve this problem. I need to make a code that can read data from a text file for example ClCdCm.txt. If there is only one file, it can be read easily by the following code:
ClCd = fopen('ClCdCm.txt') % Read Cl, Cd and Cm data
C2_text = textscan(ClCd,'%s',4);
C2_data = textscan(ClCd, '%f %f %f %f');
However, now I have many text files for example ClCdCm1.txt , ClCdCm2.txt , ClCdCm3.txt ,... These files are generated by another program and we do not know how many file there will be. There can be one file, two files, ten files or whatever. But the files are named with a rule as above. Can anyone help me to write a code to manage and read these files?
Thank you so much!
0 Kommentare
Akzeptierte Antwort
Kelly Kearney
am 24 Jul. 2014
F = dir('ClCdCm*.txt');
nfile = length(F);
ctext = cell(nfile, 1);
cdata = cell(nfile, 1);
for ii = 1:length(F)
fid = fopen(F(ii).name);
ctext{ii} = textscan(fid,'%s',4);
cdata{ii} = textscan(fid, '%f %f %f %f');
fclose(fid);
end
I used cell arrays in this example because I wasn't sure if each file will have the same number of rows. You can modify that as appropriate to your data.
Weitere Antworten (1)
Sara
am 24 Jul. 2014
k = 1;
while exist(['ClCdCm',num2str(k),'.txt'],'file')
%insert code to read file
k = k + 1;
end
Siehe auch
Kategorien
Mehr zu Text Files finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!